System and method for asset tracking for waste and recycling containers

Abstract

Systems and methods are provided for asset tracking for waste and recycling containers. A low-cost GPS location asset tracker can be provided for tracking the whereabouts of waste and recycling containers. The asset tracker can include a housing attachable to the waste container, a primary control board, an accelerometer, a battery pack, and a tracking system consisting of a GPS receiver, a GPS antenna, a cellular transceiver, and a cellular antenna traced directly onto the primary control board.

Claims

1. An asset tracking device for tracking the location of a waste container, comprising: a housing configured to directly attach to the waste container and create a weatherproof seal therewith; a plate configured to attach to a side of the housing and enclose contents within the housing, wherein the housing and the plate are sealed together with an O-ring, and wherein the housing has a plurality of corners and the plate is configured to slide into established holes in each corner of the housing; a primary control board comprising a processor; an accelerometer configured to detect whether a motion event for the asset tracking device has occurred; a battery pack; a timer configured to measure one or more time intervals; and a tracking system consisting of: a GPS receiver, a GPS antenna, a cellular transceiver, and a cellular antenna traced directly onto the primary control board; wherein the processor is configured to: determine, in communication with the accelerometer and the timer, whether the motion event occurred during the one or more time intervals; and direct the GPS receiver to acquire updated GPS location coordinates for the asset tracking device due to the occurrence of the motion event.

2. The asset tracking device of claim 1, wherein the primary control board, the accelerometer, the battery pack and the tracking system are housed within the housing.

3. The asset tracking device of claim 1, wherein the processor is further configured to acquire location tracking information via a cellular network.

4. The asset tracking device of claim 1, wherein the processor is further configured to communicate the location of the asset tracking device.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) A better understanding of the presently disclosed subject matter can be obtained when the following detailed description is considered in conjunction with the drawings and figures herein, wherein:

(2) FIG. 1A and FIG. 1B are schematic overviews of an asset tracker in accordance with illustrative embodiments of the presently disclosed subject matter;

(3) FIG. 2 is a housing for an asset tracker in accordance with an illustrative embodiment of the presently disclosed subject matter;

(4) FIG. 3 is a plate for the housing of an asset tracker in accordance with an illustrative embodiment of the presently disclosed subject matter;

(5) FIG. 4 is a primary control board (PCB) for an asset tracker in accordance with an illustrative embodiment of the presently disclosed subject matter;

(6) FIG. 5 is a primary control board (PCB) for an asset tracker in accordance with an illustrative embodiment of the presently disclosed subject matter;

(7) FIG. 6 is a primary control board (PCB) for an asset tracker in accordance with an illustrative embodiment of the presently disclosed subject matter;

(8) FIG. 7 is a process flow for cellular and cloud services for an asset tracker in accordance with an illustrative embodiment of the presently disclosed subject matter;

(9) FIG. 8 is a process flow for a download configuration request from a cloud server for an asset tracker in accordance with an illustrative embodiment of the presently disclosed subject matter;

(10) FIG. 9 is a process flow for a state machine diagram (GPS Tracker) for an asset tracker in accordance with an illustrative embodiment of the presently disclosed subject matter;

(11) FIG. 10 is a process flow for activating low power mode (sleep) for an asset tracker in accordance with an illustrative embodiment of the presently disclosed subject matter; and

(12) FIG. 11 is a process flow for motion detection for an asset tracker in accordance with an illustrative embodiment of the presently disclosed subject matter.

(13) While the presently disclosed subject matter will be described in connection with the preferred embodiment, it will be understood that it is not intended to limit the presently disclosed subject matter to that embodiment. On the contrary, it is intended to cover all alternatives, modifications, and equivalents, as may be included within the spirit and the scope of the presently disclosed subject matter as defined by the appended claims.

DETAILED DESCRIPTION

(14) The presently disclosed subject matter relates to asset tracking for waste and recycling containers. In certain illustrative embodiments, a low-cost GPS location asset tracker can be provided for tracking the whereabouts of waste and recycling containers.

(15) Schematics of illustrative embodiments of an asset tracker 10 are shown in FIG. 1A and FIG. 1B. Asset tracker 10 can include various combinations of: a housing 20 attachable to the waste container; a primary control board comprising an application processor 30; a power management system 35; an accelerometer 40; a battery pack 50; and a tracking system consisting of: a GPS receiver 60, a low noise amp (LNA) 65; an internal GPS antenna 70a and/or external GPS antenna 70b, a cellular transceiver 80, a cellular antenna 90a traced directly onto the primary control board; and a SIM/eSIM 95. In certain illustrative embodiments, the various components of asset tracker 10 can be housed inside of housing 20. A cellular antenna 90a external to the housing can also be utilized.

(16) Most current products in this space are “fully loaded,” containing a number of technologies designed to establish the location of containers including GPS, cellular, LORAWAN, wifi, etc. By comparison, in certain illustrative embodiments, the presently disclosed asset tracker 10 will seek to use only the minimum number of technologies—e.g., GPS and cellular—in order to produce the desired functioning device at reduced cost.

(17) In certain illustrative embodiments, the asset tracker 10 can include a chipset on primary control board 30 such as (but not limited to) a Nordic Cellular and GPS chipset (nRF9160), configured to minimize the size and cost of the enclosure. The asset tracker 10 can also utilize 2 (two) AA batteries in battery pack 50 that are estimated to provide up to 5 years of battery life. The asset tracker 10 can be equipped with an accelerometer 40, in order to maximize battery life and minimize GPS locking durations. The accelerometer 40 can act as a mechanism to trigger a report of a motion event. The asset tracker 10 can be equipped with a timer to enable a wake from low power mode and to prompt the asset tracker 10 to look for new GPS coordinates or repeat/reuse the existing coordinates if the asset tracker 10 (and therefore, the container) has not moved within a set number of recording intervals. This functionality can save battery life by not waiting for the GPS lock to occur and keeping the device on longer than needed.

(18) In certain illustrative embodiments, the asset tracker 10 can include a large housing 20 for housing the components thereof, as shown in FIG. 2. The housing 20 can be attached directly to the waste container, in order to maintain a weatherproof design. The electronics for the asset tracker 10 can be placed on a control board located vertically in parallel to the mounting surface.

(19) In certain illustrative embodiments, the asset tracker 10 can be enclosed via a plate 110 running along the backside of the housing 100 and sliding into established holes in each corner, as shown in FIG. 3, that can be sealed via O-ring.

(20) Various illustrative embodiments of the primary control board (PCB) 120 for the asset tracker 10 are shown in FIGS. 4-6. Primary control board (PCB) 120a is shown in FIG. 4, primary control board (PCB) 120b is shown in FIG. 5, and primary control board (PCB) 120c is shown in FIG. 6. In certain illustrative embodiments, the asset tracker 10 can include an antenna 90a for the cellular radio. The antenna 90 can be traced directly onto the primary control board (PCB) 120 in lieu of a cellular antenna chip (see the left side of the images in FIGS. 4-6). This will result in lower manufacturing costs due to less manufacturing time and the added cost of an externally-located antenna.

(21) In certain illustrative embodiments, the asset tracker 10 can utilize strictly location-based asset management using only GPS and cellular. Many existing designs are focused on the automation of waste management processes, such as unlocking the container, fill sensors, etc., rather than asset management as described herein.

(22) In certain illustrative embodiments, the asset tracker 10 can be configured to limit the amount of communication with the cellular network to minimize power usage and optimize battery life, (thus making the device last longer) as well as limit the amount of data usage and associated costs. A diagram of this process 130 is shown in FIG. 7.

(23) In certain illustrative embodiments, two-way messaging can be established, and such configuration of communications may be adjusted using a series of configuration codes that identify configuration states that may include variable parameters such as wake frequency, frequency of location measurement, communication frequency, etc. A diagram of this process 140 is shown in FIG. 8.

(24) A system state diagram 150 for an illustrative embodiment of the asset tracker 10 is shown in FIG. 9. The diagram 150 indicates the various events in the process which causes a “trigger” in order to move on to the next state.

(25) In certain illustrative embodiments, the asset tracker 10 will be capable of starting up and acquiring a signal at regular intervals, such as daily by default, but can be configured to only transmit new coordinates (via cellular network) when those coordinates have significantly changed. Otherwise, it will either submit no signal or submit a different message indicating no movement. This will significantly reduce the amount of data transmitted and extend battery life. A diagram for this process 160 is shown in FIG. 10.

(26) In certain illustrative embodiments, the asset tracker 10 can utilize logic to detect movement, acquire a GPS signal, and report location. A motion detection flow diagram 170 for an illustrative embodiment of the asset tracker 10 is shown in FIG. 11. The motion detection flow diagram 170 focuses on accelerometer functionality as well as the 24-hour timer used in conjunction with detecting motion events from the accelerometer. By using the ability to detect motion events, which will occur when the asset tracker 10 and attached waste container are moved, the asset tracker's use of battery power should be more efficient. The asset tracker 10 can also keep track of the last time the GPS location was reported to the cloud, by using a 24-hour timer and counting the number of times a motion event was detected during that period.

(27) In certain illustrative embodiments, the motion detection steps can include: (i) accelerometer will check movement; (ii) if movement detected, will exit low power mode and record a motion event; (iii) upon elapse of 24-hours or other programmed interval, the asset tracker 10 can utilize logic to count the number of motion events during recorded interval; (iv) if motion events are recorded, asset tracker 10 can acquire new GPS coordinates, and report its new location back to the cloud via a LTE-M network; (v) if motion events are not recorded, asset tracker 10 can utilize logic to count the number of 24-hour or other programmed intervals since last report of motion events; and (vi) if number of 24-hour or other programmed intervals is above a programmed threshold, such as 6 days by default, asset tracker 10 can acquire GPS coordinates and report its location back to the cloud via a LTE-M network.

(28) Additionally, in certain illustrative embodiments, the asset tracker 10 can use a cellular network to acquire GPS ephemeris data and augmented GPS/A-GPS data to accelerate speed of location acquisition via GPS satellite.

(29) While the presently disclosed subject matter will be described in connection with the preferred embodiment, it will be understood that it is not intended to limit the presently disclosed subject matter to that embodiment. On the contrary, it is intended to cover all alternatives, modifications, and equivalents, as may be included within the spirit and the scope of the presently disclosed subject matter as defined by the appended claims.